The mass effect of the quark phase transition in supernova core  

作　　者：赖祥军 刘门全 刘晶晶 罗志全 

机构地区：[1]Institute of Theoretical Physics,China West Normal University

出　　处：《Chinese Physics B》2008年第2期585-591,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10347008);the Scientific Research and Fund of Sichuan Provincial Education Department (Grant No.2006A079);the Science and Technological Foundation of China West Normal University

摘　　要：Constituent quark mass model is adopted as a tentative one to study the phase transition between two-flavour quark matter and more stable three-flavour quark matter in the core of supernovae. The result shows that the transition has a significant influence on the increasing of the core temperature, the neutrino abundance and the neutrino energies, which contributes to the enhancement of the successful probability of supernova explosion. However, the equilibrium values of these parameters （except the temperature） from the constituent quark mass model in this work are slightly bigger than those obtained from the other model. And we find that the constituent quark mass model is also applicable to describing the transition in the supernova core.Constituent quark mass model is adopted as a tentative one to study the phase transition between two-flavour quark matter and more stable three-flavour quark matter in the core of supernovae. The result shows that the transition has a significant influence on the increasing of the core temperature, the neutrino abundance and the neutrino energies, which contributes to the enhancement of the successful probability of supernova explosion. However, the equilibrium values of these parameters （except the temperature） from the constituent quark mass model in this work are slightly bigger than those obtained from the other model. And we find that the constituent quark mass model is also applicable to describing the transition in the supernova core.

关 键 词：quark transitions constituent quark mass SUPERNOVA reaction rates 

分 类 号：O572.33[理学—粒子物理与原子核物理]